maybe they might not like to feel alone, shy ,or uncomfortable. but perhaps the specific "reasons" aren't important. negative thinking can cause people to miss the best opportunity in life. Isn't life-changing experience worth more than security, comfort, or even money? Probably, it's better to think out each important decision in academic life and living. Consider both the advantages and disadvantages of each choice. Learn valuable things about yourself and the world. Stay true to your values. Become a better person. And have fun. Especially in new places with different kinds of people, your college years can be the best and most memorable time of your life.